CN212899299U

CN212899299U - Bolt

Info

Publication number: CN212899299U
Application number: CN202021541150.0U
Authority: CN
Inventors: 田乐
Original assignee: Yiyi Precision Hardware Shanghai Co ltd
Current assignee: Yiyi Precision Hardware Shanghai Co ltd
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2021-04-06
Anticipated expiration: 2030-07-29

Abstract

The utility model relates to a bolt belongs to mechanical hardware component's technical field, has solved the technical problem that the bolt is difficult for the dismouting under the condition that does not have the instrument, and it includes the nut, the nut below is equipped with the screw rod, the nut is including setting up the supporting shoe in the screw rod top, the supporting shoe top is rotated and is connected with the upper end cover, be equipped with the cavity between upper end cover and the supporting shoe, it has a plurality of connecting rods that communicate in the cavity to pass on the supporting shoe lateral wall, the below of upper end cover is equipped with the promotion subassembly that promotes the connecting rod and stretch out the cavity outside. The utility model discloses have under the condition that does not have the instrument, the staff can laborsaving carry out the dismouting to the bolt fast, improves work efficiency's effect.

Description

Bolt

Technical Field

The utility model belongs to the technical field of machinery hardware component's technique and specifically relates to a bolt is related to.

Background

Bolts are widely used in everyday life and in industrial manufacturing, also known as industrial rice. The bolt consists of a head part and a screw (a cylinder with external threads), and the bolt is matched with a nut and used for fastening and connecting two parts with through holes.

The Chinese patent with the publication number of CN206221465U authorizes a bolt, which comprises a bolt body and a washer, wherein the bolt body comprises a bolt head and a screw rod, and a ring groove is formed in one side, corresponding to the screw rod, of the bolt head; the gasket is a soft gasket and is in a round table shape, the gasket is arranged in a hollow manner, openings are formed in the upper surface and the lower surface of the gasket, and the gasket is sleeved on the screw rod through the openings; a convex ring clamped and connected with the annular groove is arranged at the edge of the opening on the upper surface of the gasket; the convex ring is fixed in the annular groove; the gasket is a magnetic rubber gasket.

The above prior art solutions have the following drawbacks: under the condition that does not have special instrument, people dismouting bolt is very hard to the fastening effect of such bolt is not good, and fastening quality is not good to lead to being become flexible easily by the fastener.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model provides a bolt, its purpose is under the condition that does not have the instrument, and the staff can laborsaving carry out the dismouting with the bolt fast, improves work efficiency.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the bolt comprises a nut, wherein a screw rod is arranged below the nut, the nut comprises a supporting block arranged above the screw rod, an upper end cover is rotatably connected above the supporting block, a cavity is arranged between the upper end cover and the supporting block, a plurality of connecting rods communicated into the cavity penetrate through the side wall of the supporting block, and a pushing assembly for pushing the connecting rods to stretch out of the cavity is arranged below the upper end cover.

Through adopting above-mentioned technical scheme, the connecting rod that the promotion subassembly was in with the cavity is released to the cavity outside, stretches out the one end of the connecting rod in the nut outside through rotating and rotates the bolt to carry out the dismouting to the bolt, under the condition that does not have the instrument, compare in rotating the nut, it is more laborsaving to rotate the connecting rod on the nut in this scheme, thereby improves the work efficiency to the bolt dismouting.

The present invention may be further configured in a preferred embodiment as: the pushing assembly comprises a convex block which is arranged below the upper end cover and used for filling the cavity, one part of side face, perpendicular to the upper end cover, of the convex block is in an arc shape from the excircle of the upper end cover and is close to the center of the upper end cover, and the arc side face is abutted to one end of the connecting rod.

Through adopting above-mentioned technical scheme, rotate the upper end cover, the upper end cover moves the lug and rotates, and the cambered surface that is more and more far away from the upper end cover centre of a circle on the lug is the butt connecting rod in proper order to the one end of keeping away from the upper end cover centre of a circle with the connecting rod is released outside the nut, and the nut is stretched out to the connecting rod from this, conveniently rotates the bolt.

The present invention may be further configured in a preferred embodiment as: and one end of the cambered surface of the lug, which is positioned on the excircle of the upper end cover, is provided with a groove for inserting the connecting rod.

Through adopting above-mentioned technical scheme, promote the connecting rod at the lug and to the migration distance after, the connecting rod inserts in the recess, from this connecting rod and the mutual joint of lug, the connecting rod keeps relative static with the lug, improves the stability of connecting rod, avoids the connecting rod in the retraction nut when rotating the bolt.

The present invention may be further configured in a preferred embodiment as: the number of the connecting rods is at least 1.

Through adopting above-mentioned technical scheme, 1 connecting rod alright rotate the bolt, and more connecting rods can share the required power of rotation bolt to make the rotation of bolt more laborsaving.

The present invention may be further configured in a preferred embodiment as: each connecting rod corresponds to the arc-shaped side face on one part of the lug respectively.

By adopting the technical scheme, when the upper end face is rotated, each cambered surface pushes the corresponding connecting rod, so that the connecting rods can be rapidly and orderly stretched out.

The present invention may be further configured in a preferred embodiment as: the connecting rod is located the one end in the cavity and is equipped with the stopper.

Through adopting above-mentioned technical scheme, the stopper makes the connecting rod be located the one end of cavity and can not break away from out the cavity, guarantees that the connecting rod can not break away from with the nut.

The present invention may be further configured in a preferred embodiment as: the limiting block is fixedly connected with the inside of the side wall of the supporting block through a spring.

Through adopting above-mentioned technical scheme, the bolt dismouting is accomplished the back, when not needing the connecting rod, rotates the upper end cover, and the spring promotes the stopper and moves towards upper end cover centre of a circle one side translation to in making the connecting rod be withdrawed the nut, retrieve the connecting rod automatically, easy operation is convenient.

The present invention may be further configured in a preferred embodiment as: the upper end of the upper end cover is rotatably connected with a rotating block.

Through adopting above-mentioned technical scheme, thereby when the construction bolt, thereby the position of turning block fixing bolt is pressed on one hand, thereby the connecting rod is rotated on one hand to tighten the bolt, because the turning block rotates with the upper end cover to be connected, press the turning block and do not influence the connecting rod and to the whole rotation of bolt, the convenient installation to the bolt.

To sum up, the utility model discloses a following at least one useful technological effect:

1. under the condition of no tool, workers can rapidly assemble and disassemble the bolt in a labor-saving manner through the connecting rod, so that the working efficiency is improved;

2. when the connecting rod is recovered, the spring can automatically recover the connecting rod into the screw cap, and the operation is simple and convenient;

3. the turning block is convenient to position the screw rod, and when the bolt is screwed down, the turning block is pressed to support the bolt, so that the bolt is conveniently installed.

Drawings

Fig. 1 is a schematic structural diagram of the embodiment.

Figure 2 is a schematic cross-sectional view of the interior of the nut of figure 1.

Fig. 3 is a schematic view of the structure of the connecting rod when it is extended.

FIG. 4 is a schematic view of the structure of the connecting rod when it is retracted

In the figure, 1, a screw; 2. a nut; 21. an upper end cover; 211. rotating the block; 212. a card slot; 213. a bump; 2131. a groove; 22. a support block; 221. a through hole; 23. a connecting rod; 231. a limiting block; 24. a spring; 25. and (7) clamping blocks.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses a bolt, including nut 2, nut 2 below is fixed with screw rod 1. The lower end of the screw rod 1 is arranged to be conical, so that the bolt can be conveniently and quickly installed on the surface of an object. The nut 2 comprises a circular supporting block 22 fixed above the screw rod 1, a circular upper end cover 21 matched with the supporting block 22 is rotatably connected above the supporting block 22, and a cavity is arranged between the upper end cover 21 and the supporting block 22. A circle of T-shaped fixture blocks 25 are fixed above the supporting block 22, the fixture blocks 25 are inserted into the annular groove 212, the upper end cover 21 is provided with an annular groove 212, the supporting block 22 is rotatably connected with the upper end cover 21 through the fixture blocks 25 inserted into the groove 212, and the upper end cover 21 cannot be separated from the supporting block 22. A rotating block 211 is rotatably connected above the upper end cover 21.

When the bolt is installed, the rotating block 211 is pressed by one hand to fix the position of the bolt, the bolt is rotated by the other hand to be screwed, and the rotating block 211 is rotatably connected with the upper end cover 21, so that the whole rotation of the connecting rod 23 to the bolt is not influenced by pressing the rotating block 211, and the bolt can be quickly positioned and installed.

A pair of through holes 221 are formed in two sides of the supporting block 22, and a pair of connecting rods 23 pointing to the center of the upper end cover 21 respectively penetrate through the pair of through holes 221. The connecting rod 23 has one end located in the cavity and the other end located outside the nut 2. One end of the connecting rod 23 in the cavity abuts against a pushing assembly which drives the connecting rod 23 to translate along the axial direction of the through hole 221. A limiting block 231 is fixed on the connecting rod 23 at the position of the pushing assembly and the inner wall of the nut 2, and the limiting block 231 prevents the connecting rod 23 from being separated from the nut 2. A spring 24 sleeved on the connecting rod 23 is arranged between the limiting block 231 and the nut 2, and two ends of the spring 24 are respectively fixed on the side walls of the limiting block 231 and the supporting block 22.

Referring to fig. 2 and 3, the pushing assembly includes a boss 213 fixed below the upper cover 21, and a lower end surface of the boss 213 abuts the supporting block 22. The side surface of the projection 213 perpendicular to the upper end cap 21 is arc-shaped from the outer circle of the upper end cap 21 to approach the center of the upper end cap 21 and abut against one end of the connecting rod 23, and the side surface of the projection 213 is divided into two parts to abut against a pair of connecting rods 23. One end of each part of the side surface of the convex block 213, which is positioned at the excircle of the upper end cover 21, is provided with a groove 2131 for inserting the connecting rod 23, and the connecting rod 23 is inserted into the groove 2131, so that the connecting rod 23 and the convex block 213 are mutually clamped, and the connecting rod 23 and the convex block 213 are kept relatively static, thereby preventing the connecting rod 23 from being retracted into the nut 2 when the bolt is rotated.

The upper end cover 21 is rotated, the upper end cover 21 drives the lug 213 to rotate, the cambered surfaces, which are farther away from the circle center of the upper end cover 21, on the lug 213 are sequentially abutted to the connecting rod 23, so that one end, which is far away from the circle center of the upper end cover 21, of the connecting rod 23 is pushed out of the nut 2, the connecting rod 23 extends out of the nut 2, the connecting rod 23 is inserted into the groove 2131 at the topmost end of the cambered surface, and at the moment, the spring 24 is; referring to fig. 3 and 4, the bolt is disassembled and assembled without tools by rotating the connecting rod 23, after the disassembling and assembling are completed, the pair of connecting rods 23 are pulled outwards and the protrusions 213 are rotated reversely, so that the connecting rod 23 is separated from the grooves 2131, the protrusions 213 are rotated continuously, and the spring 24 pushes the limiting block 231 to push the connecting rod 23 to return to the cavity.

The implementation principle of the embodiment is as follows: before installing the bolt, the upper end cover 21 is rotated, the connecting rod 23 is pushed out of the nut 2 by the lug 213, when the bolt is installed, the rotating block 211 is pressed by one hand to fix the position of the bolt, the connecting rod 23 is rotated by one hand to tighten the bolt, then the pair of connecting rods 23 are pulled outwards, the upper end cover 21 is rotated reversely, the connecting rod 23 is separated from the groove 2131, the upper end cover 21 is rotated continuously, and the spring 24 pushes a limit to push the connecting rod 23 to return to the cavity; when the bolt is disassembled, the steps are the same.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a bolt, includes nut (2), nut (2) below is equipped with screw rod (1), its characterized in that: the screw cap (2) comprises a supporting block (22) arranged above the screw rod (1), an upper end cover (21) is rotatably connected above the supporting block (22), a cavity is arranged between the upper end cover (21) and the supporting block (22), a plurality of connecting rods (23) communicated into the cavity penetrate through the side wall of the supporting block (22), and a pushing assembly for pushing the connecting rods (23) to stretch out of the cavity is arranged below the upper end cover (21).

2. A bolt according to claim 1, wherein: the pushing assembly comprises a lug (213) which is arranged below the upper end cover (21) and used for filling the cavity, one part of side surface, perpendicular to the upper end cover (21), of the lug (213) is in an arc shape from the outer circle of the upper end cover (21) and is close to the center of the upper end cover (21), and the arc-shaped side surface is abutted to one end of the connecting rod (23).

3. A bolt according to claim 2, wherein: one end of the cambered surface of the convex block (213), which is positioned at the excircle of the upper end cover (21), is provided with a groove (2131) for inserting the connecting rod (23).

4. A bolt according to claim 3, wherein: the number of the connecting rods (23) is at least 1.

5. A bolt according to claim 4, wherein: each connecting rod (23) corresponds to an arc-shaped side face on one part of the lug (213).

6. A bolt according to claim 3, wherein: and a limiting block (231) is arranged at one end of the connecting rod (23) in the cavity.

7. A bolt according to claim 6, wherein: the limiting block (231) is fixedly connected with the inner part of the side wall of the supporting block (22) through a spring (24).

8. A bolt according to claim 6, wherein: the upper end of the upper end cover (21) is rotatably connected with a rotating block (211).